CANDEAL Senior Java Developer interview questions

2 on-site interview (no HR, screening etc.). As For the second interview while I was 5 minutes from CanDeal office door was asked to postpone without any apology. When arriving to the office stood against closed door not sure what to do. When I've later complained about the whole thing and lack of apology from the CTO, they have just cancelled the 2nd interview, without apologizing whatsoever.